Verification of Surface Tension in the Parallel Free Surface Lattice Boltzmann Method in waLBerla

Donath S, Mecke K, Rabha S, Buwa V, Rüde U (2011)

Publication Type: Journal article

Publication year: 2011

Journal

Computers & Fluids Elsevier

Publisher: Elsevier

Book Volume: 45

Pages Range: 177-186

Journal Issue: 1

URI: http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6V26-51V5GHJ-2-1&_cdi=5694&_user=616145&_pii=S004579301000383X&_origin=gateway&_coverDate=12/31/2010&_sk=999999999&view=c&wchp=dGLzVzz-zSkWA&md5=2208e2e90a4976d6ecc5992b0ad1e467&ie=/sdarticle.pdf

DOI: 10.1016/j.compfluid.2010.12.027

Abstract

The free surface lattice Boltzmann method in the parallel software framework waLBerla solves a wide range of two-phase flow scenarios efficiently by neglecting the gas flow and only taking the gas pressure into account. To obtain a good parallel efficiency, an extensive algorithm computes the curvature needed to calculate the surface tension pressure by using only a restricted set of neighboring data, reducing the communication effort. This, however, is assumed to be the main limitation of the accuracy of the surface tension computation. Nevertheless, this work shows that this method is able to simulate typical two-phase applications accurately enough. It is validated by comparing the evolution of capillary waves to analytical solution, and checking the agreement of a rising bubble's velocity with experiments. The results show that the method differs less than 10% from theory in the micro-scale, and lies well within the confidence interval of experimental measurements. © 2010 Elsevier Ltd.

Authors with CRIS profile

Stefan Donath Lehrstuhl für Informatik 10 (Systemsimulation) (LSS) Klaus Mecke Lehrstuhl für Theoretische Physik Ulrich Rüde Lehrstuhl für Informatik 10 (Systemsimulation) (LSS)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM)

Related research project(s)

waLBerla - Widely applicable Lattice Boltzmann from Erlangen (waLBerla) Jan. 1, 2007 - Jan. 1, 2099 Understanding of degradation mechanisms to improve components and design of PEFC (DECODE) Understanding of degradation mechanisms to improve components and design of PEFC July 1, 2011 - June 30, 2017

Involved external institutions

Indian Institute of Technology (IIT), Delhi IN India (IN)

How to cite

APA:

Donath, S., Mecke, K., Rabha, S., Buwa, V., & Rüde, U. (2011). Verification of Surface Tension in the Parallel Free Surface Lattice Boltzmann Method in waLBerla. Computers & Fluids, 45(1), 177-186. https://doi.org/10.1016/j.compfluid.2010.12.027

MLA:

Donath, Stefan, et al. "Verification of Surface Tension in the Parallel Free Surface Lattice Boltzmann Method in waLBerla." Computers & Fluids 45.1 (2011): 177-186.

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